text: The leadership of Binh Son Refinery and Petrochemical said that in the same period last year heavy losses because of deeply declining oil prices and Covid - 91 caused the demand for petrochemical products to go down?
classes:  No, the outbreak of the Covid - 19 pandemic left Binh Son Refinery and Petrochemical suffering heavy losses last year.  Also, the outbreak of the Covid - 19 pandemic left Binh Son Refinery and Petrochemical suffering heavy losses last year.  Yes, the outbreak of the Covid - 19 pandemic left Binh Son Refinery and Petrochemical suffering heavy losses last year.